High severity · published Aug 16, 2023
CVE-2023-39975
kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure
8.8
CVSS
1.5%
EPSS
No
On KEV
Description
kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
K5
Kerberos 5 · Mit
1.21 before 1.21.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-39975
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-39975
Patch
https://github.com/krb5/krb5/commit/88a1701b423c13991a8064feeb26952d3641d840
Patch
https://github.com/krb5/krb5/compare/krb5-1.21.1-final...krb5-1.21.2-final
security.netapp.com
https://security.netapp.com/advisory/ntap-20230915-0014/
security.netapp.com
https://security.netapp.com/advisory/ntap-20240201-0005/
security.netapp.com
https://security.netapp.com/advisory/ntap-20240201-0008/
Vendor Advisory
https://web.mit.edu/kerberos/www/advisories/
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